Across TCGA pan-cancer cohorts, KDM4A mass-spec protein differs between tumor and matched normal tissue in 4 of 18 cancer types tested, making tumor–normal expression one of KDM4A’s most consistent transcriptional readouts.
The strongest signal is observed in lung squamous cell carcinoma (LSCC), where KDM4A mass-spec protein is more highly expressed in tumor relative to normal tissue. In most cancer types KDM4A is over-expressed in tumor, although a few such as PDAC show the opposite, repressed pattern.
LSCC, LUAD, and HNSC are the cancer types where KDM4A tumor–normal differential expression is most reproducible.